A female serial killer is on the loose, and it’s up to FBI
agents Dillon Savich and Lacey Sherlock to track her
down—and stop her before it’s too late. There’s evidence
that the woman, Kirsten Bolger, has a killer bloodline, too:
a connection to the notorious Ted Bundy only complicates the
case. But the crack team of Savich and Sherlock are on
it—and better than ever.

At the same time, Special Agent Lucy Carlyle learns from
her dying father that her grandfather hadn’t simply walked
away from his family twenty-two years earlier: he had, in
fact, been murdered by his wife, Lucy’s grandmother.
Determined to uncover
the truth, Lucy moves into her grandmother’s Maryland
mansion, where she finds a skeleton in a steamer trunk and
an old ring sewn inside the body’s trouser cuff. She’s led
to her grandfather’s secret papers, and learns about her
grand-
mother’s obsession with the ring and a mysterious group
called The Protectors.

As the hunt for Bolger escalates, Savich and Sherlock find
themselves in her crosshairs. It’s up to Lucy to stop this
deranged
woman and save Savich and Sherlock before it’s too late.